EU Regulation 396/2005: Pesticide Residue Testing and the Critical Role of QuEChERS Evaporation in Food Safety

<div><div><p><strong>Researchers led by </strong><a target="_blank" rel="noopener noreferrer" href="https://kudova.group.uochb.cz/en"><strong>Eva Kudová</strong></a><strong> from IOCB Prague and Jitka Viktorová from UCT Prague have identified new androstane-based steroid derivatives that can significantly improve the effectiveness of existing antibiotics against multidrug-resistant </strong><i><strong>Staphylococcus aureus</strong></i><strong>.</strong></p></div></div><div><p>The team screened dozens of natural steroidal hormones and synthetic derivatives to see whether they could block bacterial efflux pumps – mechanisms that bacteria use to eject antibiotics and survive treatment. Two compounds emerged as particularly promising: they inhibited efflux pumps and lowered the effective doses of antibiotics such as ciprofloxacin and erythromycin.</p><p>Further analysis showed that one of the compounds also suppressed genes linked to bacterial virulence. Another key finding is that the most active molecules are non-toxic to human immune cells and showed no detectable endocrine activity, suggesting a favorable safety profile.</p><p>These findings support the idea that rationally designed steroid-based molecules could act as antibiotic adjuvants, helping existing drugs overcome bacterial resistance.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/IOCB_Prague_Steroidal_hormones_and_neurosteroids_novel_therapeutic_strategies_in_bacterial_infections_8e5d2a7b48.jpg" alt="IOCB Prague: Steroidal hormones and neurosteroids – novel therapeutic strategies in bacterial infections" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_IOCB_Prague_Steroidal_hormones_and_neurosteroids_novel_therapeutic_strategies_in_bacterial_infections_8e5d2a7b48.jpg 222w," sizes="100vw" width="1258" height="886"></p><blockquote><h4><strong>Original Article</strong></h4><h4><a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0223523426001613?via%3Dihub"><strong>Steroidal hormones and neurosteroids - novel therapeutic strategies in bacterial infections: Design, synthesis, and biological evaluation</strong></a></h4><p>Daniela Brdová, Bára Křížkovská, Jan Špaček, Zdeněk Míchal, Eva Jablonská, Ondřej Strnad, Hana Chodounská, Eszter Szánti-Pintér, Marina Morozovová, Václav Hanžl, Jan Tkadlec, Martijn Riool, Jan Lipov, Jitka Viktorová, Eva Kudová&nbsp;</p><p><i><strong>Eur. J. Med. Chem., 2026, 308, 118716</strong></i></p><p><a target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1016/j.ejmech.2026.118716">https://doi.org/10.1016/j.ejmech.2026.118716</a></p><h6>licensed under <a target="_blank" rel="noopener noreferrer" href="https://creativecommons.org/licenses/by/4.0/"><strong>CC-BY 4.0</strong></a></h6></blockquote><h4><strong>Abstract</strong></h4><p>The global rise of antibiotic resistance necessitates novel therapeutic strategies for infectious diseases. Inhibition of bacterial efflux pumps, which contribute to multidrug resistance, represents a promising approach to restore or even increase the efficacy of existing antibiotics. Using fluorescence-based ethidium bromide accumulation, broth microdilution, and checkerboard assays, we evaluated 26 endogenous steroidal hormones and neurosteroids, along with 30 synthetic derivatives, for their ability to enhance antibiotic susceptibility in multidrug-resistant <i>Staphylococcus aureus</i>. Structure-activity relationship analysis identified compounds <strong>13</strong> and <strong>16</strong> as lead candidates, exhibiting strong efflux pump inhibition and marked reductions in the minimum inhibitory concentrations of ciprofloxacin and erythromycin. Both compounds showed additive effects in checkerboard assays. Modifications at C-3 (polar substitution) and C-17 (3α,5β-stereochemistry and nonpolar substitution) were essential for potent efflux inhibition and sensitization, although these modifications were not additive when combined. Transcriptome analysis further revealed that compound <strong>13</strong> significantly downregulated <i>S. aureus</i> virulence-associated genes when administered alone or in combination with antibiotics. Cytotoxicity assessment in human peripheral blood mononuclear cells and receptor transactivation assays for estrogen, androgen, and progesterone receptors indicated that the most active derivatives were non-toxic and lacked detectable endocrine activity, suggesting a favorable safety profile. Overall, these findings support the concept that rationally designed andostane-based steroidal scaffolds can function as competitive bacterial efflux pump inhibitors and serve as potential antibiotic adjuvants to mitigate efflux-mediated resistance.</p><h4><strong>Instrumentation</strong></h4><h5><strong>Structural characterization</strong></h5><ul><li><strong>AVANCE III 400 MHz NMR spectrometer</strong> (Bruker)</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library?mainauthorItems=3&amp;search=LTQ+Orbitrap+XL"><strong>LTQ Orbitrap XL HRMS</strong></a> (Thermo Fisher Scientific, ESI)</li></ul></div>

Steroidal hormones and neurosteroids – novel therapeutic strategies in bacterial infections

<p><strong>Metformin is currently the first-line oral drug of choice for the treatment of type 2 diabetes. It reduces glucose production in the liver, improves tissue sensitivity to insulin, and does not cause weight gain or hypoglycemia, which sets it apart from some other antidiabetic drugs. Moreover, its long-term beneficial effects on the risk of cardiovascular complications and mortality in people with type 2 diabetes have been well established. Researchers from the Institute of Physiology CAS (IPHYS) have identified a new group of blood metabolites that could help physicians objectively monitor whether patients with type 2 diabetes are taking their metformin as prescribed.</strong></p><h4><strong>New biomarkers for metformin use</strong></h4><p>A team led by Tomáš Čajka from the Laboratory of Translational Metabolism at IPHYS analyzed plasma samples from <strong>637 patients with type 2 diabetes treated with metformin</strong> and <strong>143 non-diabetic controls</strong> using advanced metabolomics and lipidomics. Among 614 detected metabolites, they identified five from the group of <strong>N-lactoyl-amino acids </strong>(e.g. N‑lactoyl-phenylalanine), which had previously been seen as unknown signals due to missing reference spectra in databases. The levels of these metabolites in the blood closely reflected the plasma concentrations of metformin. In patients with the highest metformin exposure, the concentrations of these metabolites were up to 7.2 times higher than in controls.</p><h4><strong>A sensitive “fingerprint” of the drug’s effect</strong></h4><p>N-Lactoyl-amino acids are formed in cells by combining lactate and amino acids, thus reflecting the metformin-induced changes in cellular energy metabolism. “<i>Importantly, even though they occur in plasma only at nanomolar concentrations, they reliably distinguish patients who take metformin regularly from those who take it irregularly or not at all</i>,” emphasizes T. Čajka.</p><h4><strong>Metabolomics in practice and international collaboration</strong></h4><p>The study also provides a detailed description of broader metabolic changes in type 2 diabetes, including increases in lactate, organic acids, and branched-chain amino acids, as well as extensive remodelling of the lipid profile. In addition to T. Čajka’s team, collaborators from the Institute for <strong>Clinical and Experimental Medicine in Prague</strong> and the <strong>West Coast Metabolomics Center</strong> (University of California, Davis) also participated in the study.</p><p>The results demonstrate that advanced metabolomics approaches developed at IPHYS within the <strong>CarDia project</strong> can find highly practical applications both in clinical studies and in personalized monitoring of treatment in patients with diabetes.</p><blockquote><h4><strong>The original article</strong></h4><h4><a target="_blank" rel="noopener noreferrer" href="https://ascpt.onlinelibrary.wiley.com/doi/10.1002/cpt.70205"><strong>Untargeted Metabolomics Identifies N-Lactoyl-Amino Acids as Dose-Responsive Plasma Biomarkers of Metformin Adherence in Type 2 Diabetes</strong></a></h4><p>Tomas Cajka, Jiri Hricko, Lucie Rudl Kulhava, Michaela Paucova, Michaela Novakova, Veronika Hola, Stanislava Rakusanova, Oliver Fiehn, Vojtech Skop, Ivana Lankova, Iva Miskova, Terezie Pelikanova, Martin Haluzik</p><p>Clin Pharmacol Ther, 119: 1057-1069</p><p><a target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1002/cpt.70205">https://doi.org/10.1002/cpt.70205</a></p><h6>licensed under <a target="_blank" rel="noopener noreferrer" href="https://creativecommons.org/licenses/by/4.0/"><strong>CC-BY 4.0</strong></a></h6></blockquote><h4><strong>Abstract</strong></h4><p>Metformin is the most widely prescribed antidiabetic drug, yet adherence remains difficult to objectively assess. Using untargeted metabolomics and lipidomics, we analyzed plasma from 637 patients with type 2 diabetes (T2D) with confirmed metformin use and 143 nondiabetic controls, annotating 614 metabolites. Patients were stratified by plasma metformin into sub-therapeutic, therapeutic, and supra-therapeutic groups, and associations were evaluated by multiple linear regression and composite metabolite ranking. Five previously unannotated features were structurally identified as N-lactoyl-amino acids, whose levels correlated strongly with plasma metformin (ρ = 0.42–0.55, P &lt; 0.0001) and increased up to 7.2-fold in the supra-therapeutic group (&gt; 2000 ng/mL). While N-lactoyl-amino acids were consistently detected in the nanomolar range, they still displayed robust and dose-dependent associations with metformin. Broader metabolic changes in T2D included elevated lactate, organic acids, and branched-chain amino acids, together with reduced urea cycle metabolites. Lipidomics showed increases in saturated triacylglycerols and diacylglycerols and decreases in cholesteryl esters, sphingomyelins, and phospholipids. These findings establish N-lactoyl-amino acids as robust, dose-responsive plasma biomarkers of metformin exposure. Despite being up to four orders of magnitude less abundant than their amino acid precursors, they sensitively reflect mitochondrial lactate overflow and pharmacodynamic adaptation, offering objective assessment of adherence.</p>

New blood biomarkers reveal how faithfully diabetes patients take metformin

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The Czech Academy of Sciences (CAS) was established by Act No. 283/1992 Coll. as the Czech successor of the former Czechoslovak Academy of Sciences. It is set up as a complex of 54 public research institutions.

Czech Academy of Sciences

The Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences (IOCB Prague) is a leading scientific institution in the Czech Republic, recognized internationally. Its primary mission is basic research in the fields of chemical biology and medicinal chemistry, organic and material oriented chemistry, chemistry of natural compounds, biochemistry and molecular biology, physical chemistry, theoretical chemistry, and analytical chemistry. 

Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences

Organomation, founded in 1959, designs and manufactures high-quality nitrogen evaporators and extraction systems. Known for innovation and durability, their lab instruments are used globally for efficient sample preparation with strong customer support.

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Waters Xevo G2-XS QTof Quadrupole Time-of-Flight Mass Spectrometry

The Xevo® G2-XS QTof combines StepWaveTM ion optics with the XS Collision Cell, providing a significant increase in sensitivity with no reduction in selectivity.

<h4><strong>eXtreme Sensitivity, eXtraordinary Selectivity, eXceptional Solutions</strong></h4><div><p><strong>For the scientist who needs to identify, quantify and confirm the broadest range of compounds in the most complex and challenging samples.</strong></p><ul><li>Maximum robustness with no compromise in performance</li><li>Class-leading real-world quantitative sensitivity</li><li>Highest quality, most comprehensive qualitative information</li><li>Flexibility to adapt to changing needs</li><li>Accessible to experts and non-experts alike</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_Xevo_G2_XS_Q_Tof_Quadrupole_Time_of_Flight_Mass_Spectrometry_1_b9f8dd32be/Waters-Xevo-G2-XS-QTof-Quadrupole-Time-of-Flight-Mass-Spectrometry-1.jpg" alt="Waters Xevo G2-XS QTof Quadrupole Time-of-Flight Mass Spectrometry." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_Xevo_G2_XS_Q_Tof_Quadrupole_Time_of_Flight_Mass_Spectrometry_1_b9f8dd32be/thumbnail_Waters-Xevo-G2-XS-QTof-Quadrupole-Time-of-Flight-Mass-Spectrometry-1.jpg 173w," sizes="100vw" width="1099" height="991"></p><h3><strong>Overview</strong></h3><div><h4><strong>Maximum robustness with no compromise in performance</strong></h4><p>The trend for increasing complexity of both samples and studies can result in difficulty obtaining high quality data for every component of interest while maintaining optimum performance throughout the analysis.</p><p>The <strong>Xevo® G2-XS QTof</strong> combines <strong>StepWave<sup>TM</sup> ion optics</strong> with the <strong>XS Collision Cell</strong>, providing a significant increase in sensitivity with no reduction in selectivity.&nbsp; During long analyses, critical hardware components stay clean for longer, so results are more reproducible and the laboratory stays productive.</p><p>Meaningful information is obtained for a greater number of components across a larger population of samples than ever before, giving a more complete picture for improved understanding and more confident decision making.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_Xevo_G2_XS_Q_Tof_Quadrupole_Time_of_Flight_Mass_Spectrometry_437f84bacd.jpg" alt="Waters Xevo G2-XS QTof Quadrupole Time-of-Flight Mass Spectrometry: Maximum robustness with no compromise in performance." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_Xevo_G2_XS_Q_Tof_Quadrupole_Time_of_Flight_Mass_Spectrometry_437f84bacd.jpg 224w," sizes="100vw" width="900" height="628"></p><div><h4><strong>Class-leading real-world quantitative sensitivity</strong></h4><p>In targeted quantitative analysis, the greatest challenge is to detect and quantify components of interest down to the lowest possible levels, often in the presence of interferences from complex matrix.&nbsp; Large variation in the concentrations of different components further adds to this challenge.</p><p>The <strong>Xevo G2-XS QTof</strong> combines sensitivity and selectivity with the mass accuracy, dynamic range and speed provided by <strong>QuanTofTM technology</strong> and the enhanced quantitative capability of <strong>Tof-MRM data acquisition</strong>.&nbsp; The end result is class-leading quantitative performance in real everyday laboratory conditions, demonstrated by limits of detection and quantification superior to anything achieved before with high resolution MS.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_Xevo_G2_XS_Q_Tof_Quadrupole_Time_of_Flight_Mass_Spectrometry_2_d805c7aa49.jpg" alt="Waters Xevo G2-XS QTof Quadrupole Time-of-Flight Mass Spectrometry: Class-leading real-world quantitative sensitivity." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_Xevo_G2_XS_Q_Tof_Quadrupole_Time_of_Flight_Mass_Spectrometry_2_d805c7aa49.jpg 245w," sizes="100vw" width="900" height="312"></p><div><h4><strong>Highest quality, most comprehensive qualitative information</strong></h4><p>In addition to accurate quantitative profiles, complete understanding of a sample requires detailed and comprehensive qualitative information.</p><p><strong>MS<sup>E</sup></strong> is a simple but powerful approach that delivers accurate mass precursor and fragment ion data for every detectable component, whether chromatographically resolved or not.&nbsp; This represents the ultimate in qualitative information, and because the approach is un-targeted, the data can be interrogated again later as scientific questions evolve.</p><p><strong>FastDDA</strong> is an automated, targeted data acquisition method that provides rapid, intelligent accurate mass MS/MS capability for confirmation of known compounds or characterization of unknowns, for situations where only true MS/MS data will suffice.</p><h4><strong>Flexibility to adapt to changing needs</strong></h4><div><p>The growing emphasis on efficiency and productivity in the laboratory demands analytical systems that are not only robust and reliable, but that also have the flexibility to accomplish a wide variety of tasks today, with future-proofing for the innovations of tomorrow.&nbsp;</p><p><strong>Waters’ Universal Ion Source Architecture</strong> enables the use of a single analytical platform for many different applications and molecule types, as well as providing the option to add new functionality as requirements and priorities change.&nbsp; All source options are designed to be quickly interchangeable and ready to use within minutes, maximizing versatility and minimizing downtime.</p><div><h3><strong>Accessible to experts and non-experts alike</strong></h3><p>Traditionally the ability to achieve and maintain optimum performance from such a powerful analytical system would require a level of knowledge and experience held only by expert users.</p><p>The <strong>Xevo G2-XS QTof</strong> features <strong>IntelliStartTM technology</strong>, an intuitive user interface that automates routine tasks and ensures reproducible data of the highest quality, ensuring the full capability of the system is accessible to all.</p><p><strong>IntelliStart enables essential functions to be carried out automatically:</strong></p><ul><li>MS resolution and calibration checks</li><li>Simple setup of diverse experiments</li><li>Scheduled LC-MS system checks</li><li>Continuous system monitoring</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_Xevo_G2_XS_Q_Tof_Quadrupole_Time_of_Flight_Mass_Spectrometry_3_279cf35277.jpg" alt="Waters Xevo G2-XS QTof Quadrupole Time-of-Flight Mass Spectrometry: Accessible to experts and non-experts alike." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_Xevo_G2_XS_Q_Tof_Quadrupole_Time_of_Flight_Mass_Spectrometry_3_279cf35277.jpg 136w," sizes="100vw" width="900" height="1038"></p></div></div></div></div></div></div>

Thermo Scientific™ Orbitrap Fusion™ Tribrid™ Mass Spectrometer

Orbitrap Fusion Tribrid MS combines quadrupole, ion trap, and Orbitrap analyzers for ultra-flexible MSⁿ workflows, enabling deep proteomics, PTM analysis, and confident structural elucidation.

<h4><strong>Revolutionary tribrid architecture for comprehensive structural analysis and deep proteome coverage</strong></h4><p>The Orbitrap Fusion Tribrid mass spectrometer combines a quadrupole, a linear ion trap, and an Orbitrap mass analyzer in a unique architecture that delivers unmatched analytical performance. It provides life scientists with advanced MS<sup>n</sup> capabilities, flexibility in fragmentation techniques, and exceptional resolution and speed — ideal for tackling the most complex analytical challenges in proteomics, PTMs, metabolomics, lipidomics, and small molecule research.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Pragolab_Thermo_Orbitrap_Fusion_Tribrid_hmotnostni_spektrometr_e93c577ae5/Pragolab-Thermo-Orbitrap-Fusion-Tribrid-hmotnostni-spektrometr.webp" alt="Thermo Scientific™ Orbitrap Fusion™ Tribrid™ Mass Spectrometer" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Pragolab_Thermo_Orbitrap_Fusion_Tribrid_hmotnostni_spektrometr_e93c577ae5/thumbnail_Pragolab-Thermo-Orbitrap-Fusion-Tribrid-hmotnostni-spektrometr.webp 245w," sizes="100vw" width="1914" height="1059"></p><h3><strong>Key Features and Benefits</strong></h3><h4>🔬 <strong>Revolutionary Tribrid Design</strong></h4><ul><li>Combines <strong>quadrupole</strong>, <strong>linear ion trap</strong>, and <strong>Orbitrap</strong> analyzers</li><li>Perform <strong>MSⁿ up to n = 10</strong> with detection in either ion trap or Orbitrap</li><li>Fragmentation options: <strong>CID</strong>, <strong>HCD</strong>, <strong>ETD</strong>, and <strong>EThcD</strong> at any MS stage</li><li><strong>Synchronous Precursor Selection (SPS)</strong>: up to <strong>20 precursors per scan</strong> for MS³</li></ul><h4>⚙️ <strong>High Performance &amp; Resolution</strong></h4><ul><li><strong>Resolving power up to 500,000 FWHM</strong> at m/z 200</li><li><strong>&lt;1 ppm</strong> mass accuracy with EASY-IC™ internal calibration</li><li><strong>Polarity switching in 1.1 s full cycle</strong></li><li><strong>Scan speeds up to 20 Hz</strong> for Orbitrap and ion trap MSn</li></ul><h4>🧪 <strong>Versatility in Applications</strong></h4><ul><li>Analyze <strong>low-abundance</strong>, <strong>high-complexity</strong>, or structurally complex samples</li><li>Confidently resolve <strong>isobaric interferences</strong> and detect <strong>PTMs</strong></li><li>Full compatibility with <strong>intact protein analysis</strong>, glycoproteomics, and TMT SPS-MS³ quantitation workflows</li></ul><h4>🔁 <strong>Efficient Ion Handling</strong></h4><ul><li><strong>EASY-Max NG</strong> or <strong>NanoSpray Flex NG</strong> ion sources</li><li><strong>Active Beam Guide</strong> and <strong>S-Lens</strong> for efficient ion transmission</li><li><strong>Dynamic Scan Management</strong> optimizes scan scheduling and parallelization</li></ul><h4>💡 <strong>Ease of Use</strong></h4><ul><li>Intuitive <strong>Tune and Method Editors</strong></li><li>Method templates for routine and advanced workflows</li><li><strong>Quanfirmation</strong>: HRAM SIM for quantitation + ion trap MS/MS for confirmation</li><li>Automated calibration, AGC, and exclusion logic</li></ul><h4>🧬 <strong>Compatible Software</strong></h4><ul><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1758"><strong>Xcalibur™</strong></a><strong>, </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1782"><strong>Proteome Discoverer™</strong></a><strong>, </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1756"><strong>ProSight™</strong></a><strong>, </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1757"><strong>Mass Frontier™</strong></a><strong>, </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1759"><strong>Compound Discoverer™</strong></a>, and others</li><li>Support for data-dependent, targeted, and deconvolution workflows</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Pragolab_Thermo_Orbitrap_Fusion_Tribrid_hmotnostni_spektrometr_2_3d7accb56e/Pragolab-Thermo-Orbitrap-Fusion-Tribrid-hmotnostni-spektrometr-2.webp" alt="Thermo Scientific™ Orbitrap Fusion™ Tribrid™ Mass Spectrometer" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Pragolab_Thermo_Orbitrap_Fusion_Tribrid_hmotnostni_spektrometr_2_3d7accb56e/thumbnail_Pragolab-Thermo-Orbitrap-Fusion-Tribrid-hmotnostni-spektrometr-2.webp 245w," sizes="100vw" width="1038" height="622"></p>

Thermo Scientific™ Orbitrap Fusion™ Lumos™ Tribrid™ Mass Spectrometer

The Orbitrap Fusion Lumos Tribrid MS combines quadrupole, ion trap, and Orbitrap analyzers for high-resolution, ultra-sensitive MSn workflows in proteomics, metabolomics, and biopharma.

<h4><strong>The most powerful tribrid MS platform for deep, multidimensional analysis in proteomics, metabolomics, and structural biology</strong></h4><p>The <strong>Orbitrap Fusion Lumos Tribrid MS</strong> is a cutting-edge mass spectrometer that combines a quadrupole, a linear ion trap, and an Orbitrap™ high-resolution accurate-mass analyzer in a single platform. With unmatched sensitivity, selectivity, and versatility, it enables scientists to tackle complex biological questions with confidence—whether in discovery proteomics, targeted quantitation, top-down protein analysis, glycoproteomics, lipidomics, or small molecule research.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Pragolab_Thermo_Orbitrap_Fusion_Lumos_Tribrid_hmotnostni_spektrometr_1_39be5478b4/Pragolab-Thermo-Orbitrap-Fusion-Lumos-Tribrid-hmotnostni-spektrometr-1.webp" alt="Thermo Scientific™ Orbitrap Fusion™ Lumos™ Tribrid™ Mass Spectrometer" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Pragolab_Thermo_Orbitrap_Fusion_Lumos_Tribrid_hmotnostni_spektrometr_1_39be5478b4/thumbnail_Pragolab-Thermo-Orbitrap-Fusion-Lumos-Tribrid-hmotnostni-spektrometr-1.webp 245w," sizes="100vw" width="1823" height="1068"></p><h3>🔬 <strong>Unmatched Analytical Performance</strong></h3><ul><li><strong>&gt;500,000 resolution</strong> with Orbitrap Ultra-High Field analyzer</li><li><strong>Sub-ppm mass accuracy</strong> with real-time calibration</li><li><strong>Attomole-level quantification</strong> using PRM and DIA</li><li><strong>High sensitivity MS/MS</strong> with HCD, CID, ETD, EThcD, and new ETD HD fragmentation</li></ul><h3>🔄 <strong>Flexibility Across Workflows</strong></h3><ul><li><strong>Tribrid architecture</strong>: combine quadrupole precursor selection, ion trap MSn, and Orbitrap detection</li><li><strong>DIA, PRM, and SPS-MS3</strong> quantification workflows with isobaric tags (e.g., TMT, TMTpro)</li><li><strong>Top-down intact protein analysis</strong> with high sequence coverage</li><li><strong>Fast polarity switching</strong> and intelligent acquisition for lipidomics</li></ul><h3>🧪 <strong>Ideal for Multi-Omics and PTMs</strong></h3><ul><li>Deep profiling of <strong>glycopeptides</strong>, <strong>phosphoproteins</strong>, and other post-translational modifications</li><li>Resolution of <strong>isobaric isoforms</strong>, methylation patterns, and histone modifications</li><li>Confident structure elucidation of small molecules with fine isotope resolution</li></ul><h3>💡 <strong>Smart Technology for Productivity</strong></h3><ul><li><strong>Advanced Quadrupole Technology</strong> (AQT) for high transmission and selectivity</li><li><strong>Automatic gain control (AGC)</strong> for optimal ion population</li><li><strong>Easy ETD™ source</strong> and <strong>vent-free maintenance</strong> with source plug</li><li><strong>Method templates and visual method editor</strong> for intuitive setup</li></ul><h3>🧬 <strong>Applications</strong></h3><ul><li>Quantitative and discovery proteomics (e.g., large-scale TMT SPS-MS3)</li><li>Structural characterization of antibodies and proteoforms</li><li>Targeted metabolite quantitation and small molecule identification</li><li>Comprehensive glycoproteomics and lipidomics workflows</li></ul><h3>🧷 <strong>Software Compatibility</strong></h3><ul><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1758"><strong>Xcalibur™</strong></a> and <strong>Tune</strong> for control and calibration</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1782"><strong>Proteome Discoverer™</strong></a><strong>, </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1756"><strong>ProSight™</strong></a><strong>, </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/77"><strong>TraceFinder™</strong></a><strong>, </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1757"><strong>Mass Frontier™</strong></a><strong>, </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1759"><strong>Compound Discoverer™</strong></a> for data analysis across omics</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Pragolab_Thermo_Orbitrap_Fusion_Lumos_Tribrid_hmotnostni_spektrometr_3_7458a4eb26/Pragolab-Thermo-Orbitrap-Fusion-Lumos-Tribrid-hmotnostni-spektrometr-3.webp" alt="Thermo Scientific™ Orbitrap Fusion™ Lumos™ Tribrid™ Mass Spectrometer" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Pragolab_Thermo_Orbitrap_Fusion_Lumos_Tribrid_hmotnostni_spektrometr_3_7458a4eb26/thumbnail_Pragolab-Thermo-Orbitrap-Fusion-Lumos-Tribrid-hmotnostni-spektrometr-3.webp 245w," sizes="100vw" width="2578" height="1296"></p>

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